The New Encyclopaedia Britannica, Volume 5

From inside the book

Results 1-3 of 74

Page 51All the known forces of nature can be traced to these fundamental interactions.
Gravitation and elec- tromagnctism were recognized long before the discovery of
the strong and weak forces because their effects on ordinary objects are readily ...

Page 4311 1, 1788, Paris), French naval commander who engaged British forces during
the U.S. War of Independence (1775-83). De Grasse took service in 1734 on the
galleys of the Knights of Malta, and in 1740 he entered the French service.
Shortly ...

Page 454His forces advanced toward Europe in 492 bc, but, when much of his fleet was
destroyed in a storm, he returned home. However, in 490 a Persian army of
25,000 men landed unopposed on the Plain of Marathon, and the Athenians
appealed ...